package cuppics;

import java.util.ArrayList;
import java.util.List;

import org.junit.Test;

public class Prj30 {

	/**
	 * Surprisingly there are only three numbers that can be written as the sum
	 * of fourth powers of their digits:
	 * 
	 * 1634 = 14 + 64 + 34 + 44 8208 = 84 + 24 + 04 + 84 9474 = 94 + 44 + 74 +
	 * 44 As 1 = 14 is not a sum it is not included.
	 * 
	 * The sum of these numbers is 1634 + 8208 + 9474 = 19316.
	 * 
	 * Find the sum of all the numbers that can be written as the sum of fifth
	 * powers of their digits.
	 */
	@Test
	public void test() {

		int sum = 0;
		for (int i = 10; i < Math.pow(10, 6); i++) {

			if (checkCondition(i)) {
				System.out.println(i);
				sum += i;
			}
		}

		System.out.println("sum=" + sum);
	}

	private boolean checkCondition(int val) {

		List<Integer> data = new ArrayList<Integer>();
		int num = val;
		while( num >= 10){
			data.add(num % 10);
			num /= 10;
		}
		data.add(num);
		
		int sum = 0;
		for( int i = 0 ; i < data.size(); i ++){
			sum += Math.pow(data.get(i), 5);
		}
		
		return sum == val;
	}
	
	
	
	public static class CalculateParams{
		
		/**
		 * 横向网格点数
		 */
		public int m;
		/**
		 * 纵向网格个数
		 */
		public int n;
		/**
		 * 网格间距
		 */
		public int netSize;
		/**
		 * 网格点数值
		 */
		public double[] val;
		/**
		 * 等直面数值数组
		 */
		public double[] contourVal;
		/**
		 * 等直面个数
		 */
		public int coutourNum;
	}

}
